These "Traditional"-style bridge pins will fits Martin, Gibson, Epiphone, Yamaha and many more. * These high-quality bridge pins are designed to transfer the right frequencies more efficiently from the string to the guitar body, resulting in delicate highs and big open lows. * Shank Diameter: .2020in/5.14mm. The taper on the shank is 3 degrees. The most important measurement when sizing bridge pins is the diameter of the top of the SHANK, immediately below the collar beneath the pin head. * Color: White with 2mm Mother-of-Pearl dots. * Traditional-style are the most common bridge pin. Also available in Presentation size and Black TUSQ